YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1914 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1915 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1916 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1917 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1918 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1919 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1920 | ----- | z | ----- | z | 39.50 | y | 48.33 | 67.52 | 77.53 | 85.77 | 79.42 | 71.87 | 56.10 | 42.00 | 31.10 | a | 62.18 | c | ||||||||
1921 | 34.42 | 40.18 | 51.29 | 53.97 | a | 66.29 | 78.50 | 87.73 | a | 78.13 | 75.13 | 66.00 | 50.50 | 39.80 | a | 60.16 | ||||||||||
1922 | 30.43 | a | 33.71 | 41.94 | 52.07 | 67.37 | a | 80.87 | 87.17 | b | 82.26 | 78.27 | 63.23 | a | 43.50 | 37.65 | 58.20 | |||||||||
1923 | 38.39 | 35.74 | a | 42.13 | 53.83 | 67.13 | 76.30 | 84.97 | 79.45 | 70.97 | 54.45 | 47.23 | 35.23 | a | 57.15 | |||||||||||
1924 | 32.06 | 44.76 | 41.00 | 55.50 | 69.71 | 81.03 | 84.03 | 83.13 | 72.70 | 58.48 | 46.07 | 29.97 | 58.20 | |||||||||||||
1925 | 28.71 | 40.07 | 48.81 | 61.70 | 75.52 | 82.80 | o | 84.94 | 78.61 | 69.60 | 57.39 | 42.97 | 38.07 | a | 56.94 | a | ||||||||||
1926 | 34.94 | 42.50 | 49.87 | 61.03 | 68.45 | 83.21 | a | 84.65 | 84.23 | 74.50 | 66.35 | 50.07 | 34.84 | 61.22 | ||||||||||||
1927 | 38.29 | 41.54 | 47.52 | 58.17 | 69.19 | 78.10 | 84.58 | 80.74 | 71.10 | 65.10 | 50.33 | 34.00 | 59.89 | |||||||||||||
1928 | 41.94 | 43.10 | 52.29 | 57.40 | 70.40 | a | 77.03 | 86.03 | 82.16 | 77.50 | 63.16 | 45.60 | 37.23 | 61.15 | ||||||||||||
1929 | 34.65 | 32.64 | 48.23 | 54.40 | 68.35 | 78.40 | 85.16 | 84.74 | 71.17 | 63.67 | a | 47.60 | 45.45 | 59.54 | ||||||||||||
1930 | 28.55 | 45.11 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 36.83 | j | ||
1931 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1932 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1933 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1934 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1935 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1936 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1937 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1938 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1939 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1940 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1941 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1942 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1943 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1944 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1945 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1946 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1947 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1948 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1949 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1950 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1951 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1952 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1953 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1954 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1955 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1956 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1957 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1958 | ----- | z | ----- | z | ----- | z | ----- | z | 72.71 | 81.93 | 85.73 | e | 86.20 | k | 74.10 | i | 69.15 | k | 49.86 | i | 46.86 | j | 80.12 | i | ||
1959 | 39.18 | i | 41.55 | f | 49.13 | h | 59.84 | k | 67.62 | e | 83.96 | d | 86.86 | c | 82.59 | d | 71.41 | c | 62.85 | r | 51.77 | d | 40.62 | e | 69.26 | e |
1960 | 31.61 | c | 34.61 | f | 49.68 | c | 58.78 | c | 68.76 | b | 82.92 | d | 90.21 | b | 84.37 | d | 78.23 | d | 63.96 | c | 48.44 | c | 40.14 | c | 63.37 | a |
1961 | 43.07 | d | 45.85 | a | 45.55 | 58.27 | 68.33 | a | ----- | z | 87.83 | a | 82.85 | e | 66.40 | 64.26 | 44.53 | 33.86 | b | 58.26 | a | |||||
1962 | 35.84 | 42.85 | b | ----- | z | 61.83 | 67.06 | 81.21 | a | 88.87 | 85.87 | a | 77.73 | 65.00 | 49.90 | 37.39 | 63.05 | a | ||||||||
1963 | 29.23 | 47.37 | a | 48.20 | a | 51.00 | b | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.95 | h | |
1964 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1965 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1966 | ----- | z | ----- | z | ----- | z | 63.22 | u | 72.29 | 78.90 | 86.19 | 86.42 | 78.80 | 63.03 | 52.70 | 38.67 | a | 69.63 | d | |||||||
1967 | 34.58 | 44.07 | 51.97 | 56.43 | 66.94 | 71.37 | 85.94 | 86.50 | a | 78.03 | 67.48 | 52.43 | 30.94 | 60.56 | ||||||||||||
1968 | 33.87 | 42.55 | 49.60 | a | 51.73 | 64.87 | 81.43 | 87.32 | 75.45 | 73.77 | 64.71 | 47.43 | 32.33 | a | 58.76 | |||||||||||
1969 | 34.23 | a | 34.89 | 40.55 | 56.07 | 72.77 | 74.30 | 85.35 | 90.52 | 73.57 | 55.97 | 48.77 | 42.71 | 59.14 | ||||||||||||
1970 | 37.35 | 50.50 | 47.03 | 46.33 | 63.52 | 69.87 | 85.87 | 86.94 | 71.10 | 50.87 | 46.10 | 37.06 | 57.71 | |||||||||||||
1971 | 40.65 | 43.68 | 46.48 | 60.43 | 56.00 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 43.71 | i | 37.00 | 47.37 | f | ||||||
1972 | ----- | z | ----- | z | ----- | z | ----- | z | 72.11 | m | 78.65 | g | 85.29 | n | 82.41 | i | 69.40 | j | 55.05 | i | 45.52 | i | ----- | z | ----- | z |
1973 | ----- | z | 36.50 | h | 41.05 | i | ----- | z | ----- | z | 72.12 | m | 80.18 | n | 81.70 | h | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1974 | ----- | z | ----- | z | 52.45 | t | 54.71 | i | 70.41 | i | 83.45 | j | 82.44 | o | 81.92 | e | 73.12 | d | 61.42 | 44.42 | d | 33.27 | e | 58.83 | g | |
1975 | 31.10 | a | 35.14 | 41.84 | 46.77 | 59.10 | 69.93 | 82.94 | 80.55 | 73.30 | 59.89 | c | 45.17 | 36.16 | 55.16 | |||||||||||
1976 | 33.72 | b | 41.66 | 44.55 | 54.83 | 66.55 | 76.18 | h | 81.71 | j | 80.55 | 72.48 | c | 59.48 | 50.27 | 39.50 | a | 54.36 | b | |||||||
1977 | 33.65 | 45.11 | a | 43.10 | 60.50 | 61.13 | 81.85 | d | 82.42 | 81.39 | 72.67 | 61.76 | b | 45.90 | 39.03 | 59.04 | ||||||||||
1978 | 34.48 | 35.64 | 47.61 | 53.41 | c | 61.13 | 75.37 | 83.13 | 80.48 | 70.90 | 64.13 | 43.67 | 26.94 | 56.41 | ||||||||||||
1979 | 20.68 | c | 34.05 | f | 40.39 | 55.07 | 64.00 | 77.43 | 85.06 | 78.13 | 72.63 | 59.81 | 36.79 | a | 35.71 | 56.88 | a | |||||||||
1980 | 32.67 | a | 37.93 | 39.58 | 53.50 | 58.84 | 76.93 | 83.42 | 80.39 | 71.07 | 58.48 | 46.66 | a | 45.13 | 57.05 | |||||||||||
1981 | 43.65 | 42.07 | 42.90 | 58.17 | 61.58 | 79.10 | 83.42 | 79.94 | 71.83 | 53.29 | 47.00 | 36.16 | 58.26 | |||||||||||||
1982 | 30.26 | 34.04 | 43.32 | 51.23 | 62.48 | 73.60 | 82.48 | 80.55 | 68.50 | 52.58 | 39.63 | 32.32 | 54.25 | |||||||||||||
1983 | 35.48 | 38.25 | 43.23 | 47.00 | 58.94 | 72.27 | 78.94 | 81.52 | 74.97 | 59.81 | 42.63 | 31.52 | 55.38 | |||||||||||||
1984 | 31.94 | 34.86 | 42.90 | 50.00 | 68.10 | 71.40 | 81.10 | 79.52 | 70.97 | 50.55 | 43.43 | 31.58 | 54.69 | |||||||||||||
1985 | 32.84 | 32.07 | a | 43.65 | 58.27 | 66.23 | 78.00 | 83.03 | 83.00 | 66.53 | 57.25 | g | 39.59 | a | 36.10 | 56.30 | a | |||||||||
1986 | 38.77 | a | 40.11 | 50.45 | 51.47 | 62.39 | 79.10 | 79.42 | 82.52 | 66.10 | 55.61 | 43.87 | 36.97 | 57.23 | ||||||||||||
1987 | 31.65 | 38.89 | 41.87 | 59.83 | 63.97 | 79.18 | b | 80.45 | 78.45 | 74.07 | 63.39 | 43.20 | 32.07 | a | 57.25 | |||||||||||
1988 | 28.42 | 39.14 | a | 43.68 | 55.90 | 64.74 | 78.93 | 85.23 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 56.58 | e | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 34.00 | 40.19 | 45.52 | 54.95 | 66.00 | 77.74 | 84.73 | 81.92 | 72.76 | 60.30 | 46.07 | 36.07 | 58.02 | |||||||||||||
S.D. | 4.71 | 4.68 | 3.79 | 4.41 | 4.41 | 3.91 | 2.56 | 3.10 | 3.38 | 4.76 | 3.83 | 4.20 | 2.02 | |||||||||||||
SKEW | -0.11 | 0.02 | 0.23 | -0.29 | -0.18 | -0.52 | -0.33 | 0.58 | 0.02 | -0.53 | -0.24 | 0.22 | -0.21 | |||||||||||||
MAX | 43.65 | 50.50 | 52.29 | 61.83 | 75.52 | 83.96 | 90.21 | 90.52 | 78.80 | 67.48 | 52.70 | 45.45 | 61.22 | |||||||||||||
MIN | 20.68 | 32.07 | 39.58 | 46.33 | 56.00 | 69.87 | 78.94 | 75.45 | 66.10 | 50.55 | 36.79 | 26.94 | 54.25 | |||||||||||||
YRS | 33 | 31 | 31 | 33 | 35 | 31 | 33 | 33 | 33 | 31 | 33 | 34 | 22 |